Posted by hoover on Friday, September 23, 2011 at 5:38pm.
Why don't you experiment and find out?
What is your hypothesis?
If yellow cellophane is covered then the plant growth will increase.
what does this mean Lower frequency light (red) contains less energy than higher frequency light (green)?
This site explains light frequency.
http://www.ducksters.com/science/light_spectrum.php
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